﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace System.Runtime.CompilerServices
{
    /// <summary>
    /// 为了解决-缺少编译器要求的成员“System.Runtime.CompilerServices.ExtensionAttribute..ctor”
    /// </summary>
    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class | AttributeTargets.Assembly)]
    public class ExtensionAttribute : Attribute 
    {
    }
}

